Haven't tried it, yet. But, to compare them, maybe someone should try both with the exact same weightload and see how they measure up in terms of how they hit muscles, the fatigue (in arms etc), and obviously how much it is possible to go up to with goblet squats.

Somehow, I imagine they won't hit in the same way as goblet squats because there is a degree of angularity (??, is that even a word) in the upward/downward movement whereas goblet squats will be ALL quad/hamstring.